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IJSTR >> Volume 3- Issue 7, July 2014 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Sorption And Kinetics Study Of Potassium Chloride In Polyvinyl Alcohol-Borate Hydrogel

[Full Text]

 

AUTHOR(S)

Rehana Saeed, Zain Ul Abdeen

 

KEYWORDS

Index Terms: Adsorption Isotherm, Conductometric studies, Desorption, Hydrogel, Kinetics, PVOH-borate

 

ABSTRACT

Abstract: Isotherms for the adsorption of KCl in PVOH-borate hydrogel was studied at 303 K by determining the amount of potassium and chloride ions adsorbed in PVOH-borate hydrogel using ion exchange chromatography and potentiometric titrations respectively. Experimental data was tested for Frendulich’s, Langmuir’s, Temkin’s and Dubinin–Radushkevich isotherms equations. The adsorption data follows isotherms in order Frendulich’s > Dubinin–Radushkevich > Temkin’s. Kinetics of adsorption and desorption processes were studied using conductivity method. The applicability of pseudo first order, second order kinetics and intra particle diffusion kinetics were tested. From standard deviation, R2 and 2 values it can be concluded that sorption of KCl using PVOH-borate hydrogel as an adsorbent obey pseudo first order kinetics. Intra particle diffusion rate constant increases on enhancement in the contents of KCl. Obeying Temkin’s isotherm and intra particle diffusion kinetics confirmed the presence of interaction between potassium ions and PVOH-borate hydrogel during sorption phenomenon.

 

REFERENCES

[1]. Krevelen, D.W.V. (2009) Properties of polymers, 4th edn, Elsevier B.V..

[2]. Chanda, M. (2006) Introduction to polymer science and chemistry, Taylor and Francis group.

[3]. Cho, G., Park, K.., Jang, J., Jung, S., Moon, J., and Kim. (2002) Preparations of polymer films with enhanced ion conductivity via 3D controlled ionic nanochannels. T. Electrochemistry communications, 4: 336-339.

[4]. Haraguchi, K. and Li, H.J. (2006) Mechanical properties and structure of polymer-clay nanocomposite gels with high clay contents. Macromolecules, 39: 1898-1905.

[5]. Narasaiah, E.L., Reddy, M.J. and Rao, U.V.S. (1995) Study of a new polymer electrolyte (PVP+KYF4) for solid state electrochemical cells. J. Power Sources, 55: 255-257.

[6]. Lewandowski, A., Skorupska, K., and Malinska, J. (2000) Novel poly(vinyl alcohol)-KOH-H2O alkaline polymer electrolyte. Solid State Ionics, 133: 265-271.

[7]. Ochiai, H., Fukushima, S. and Fujikawa, M. (1976) Mechanical and thermal properties of poly(vinyl alcohol) crosslinked by borax. Polymer J., 8: 131-133.

[8]. Casassa, E.Z., Sarquis, A.M., Dyke, C.H V. (1986) The gelation of Polyvinyl alcohol with borax. J. Chem. Educ., 63: 57-60.

[9]. Lin, H.L., Liu, Y.F., Yu,T.L., Liu, W.H. and Rwei, S.P. (2005) Light scattering and viscoelasticity study of poly(vinyl alcohol)-borax aqueous solutions and gels. Polymer J., 46: 5541-5549.

[10]. Yin, Y., Li, J., Liu, Y. and Li, Z. (2005) Starch crosslinked with poly(vinyl alcohol) by boric acid. J. Appl. Polym. Sci., 96: 1394-1397.

[11]. Murphy, D.J., Sankaliaa, M.G., Loughlina, R.G., Donnellya, R.F., Jenkinsb, M.G. and McCarronc, P.A. (2012) Physical characterization and component release of poly(vinyl alcohol)–tetrahydroxyborate hydrogels and their applicability as potential, topical drug delivery systems. Int. J. Pharm., 423: 326– 334.

[12]. Boparai, H.K., Joseph, M. and O’Carroll, D.M. (2011) Kinetics and thermodynamics of cadmium ions removal by adsorption onto nano zerovalent iron particles. J. Hazard. Mater., 186: 458-465.

[13]. Kashefi, M., Salaryan, P., Hazeri, N., Valizadeh, J., Abdi, A. and Mohammadnia, M.S. (2012) Biosorption of Cr (VI) from aqueous solutions using carum copticum stem. Int. J. Chm. Biochm. Soc., 1: 48-53.

[14]. Behera.,S.K., Kim, J.H., Guo, X. and Park, H.S. (2008) Adsorption equilibrium and kinetics of polyvinyl alcohol from aqueous solution on powder activated carbon. J. Hazard. Mater., 153: 1207-1214.

[15]. Lin, L., Lei, Z., Wang, L., Liu, X., Zhang, Y., Wan, C., Lee, D.J. and Tay, J.H. (2013) Adsorption mechanisms of high-levels of ammonium onto natural and NaCl modified zeolites. Sep. Purif. Technol., 103: 15-20.

[16]. Majidi, A., Rahnemale, R., Hassani, A. and Malakouti, M.J. (2010) Adsorption and desorption processes of boron in calcareous soils. Chemosphere, 80: 733-739.

[17]. Rahchamani, J., Mousavi, H.Z. and Behzad, M. (2011) Adsorption of methyl violet from aqueous solution by polyacrylamide as an adsorbent: isotherm and kinetics study. Desalination, 267: 256-260.

[18]. Wang ,W., Zheng, B., Dang, Z., Feng, Z. and Fu, L. (2013) Kinetics and equilibrium for adsorption of poly(vinyl alcohol) from aqueous solution onto natural bentonite. Chem. Eng. J., 214: 343-354.

[19]. Oishi, K. and Maehata, Y. (2013) Removal of dissolved boron by glucomannan gel. Chemosphere, 91: 302-306.

[20]. Saeed, R., Masood, S. and Abdeen, .Z. (2013) Ionic interaction of transition metal salts with polyvinyl alcohol-borax- ethyl acetate mixtures. Int. J. Sci. Technol. 3: 132-142.

[21]. Manna, U. and Patil, S. (2009) Borax medicated layer by layer self assembly of neutral poly(vinyl alcohol) and chitosan. J. Phys. Chem. B., 113: 9137-9142.